Dr. Emily E. Ray Ko
- Gender: Female
- Experience: 24 years
- Graduated from: Stanford University School Of Medicine
- Graduation year: 1997
- Sole propriator: No
- NPI: 1336342997
Dr. Emily E. Ray Ko M.D.
Hospitalist
She is located at 4103 Graceview Way in Durham, NC 27705. Can help patients with the following: Cholecystitis, Cystitis, Fever, Inguinal Hernia, Obesity, Prescription Refill. Her National Provider Identifier (NPI) number is 1336342997. Appointment can be made via the phone number (206) 240-3764. She is affiliated with 1 practices and 1 hospitals.
Conditions treated
Dr. Emily E. Ray Ko, being an hospitalist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Emily E. Ray Ko.
- Abdominal Pain
- Acute Pain
- Anemia
- Arthritis
- Asthma
- Atherosclerosis
- Bladder Control
- Chest Pain
- Cholecystitis
- Chronic Obstructive Pulmonary Disease (COPD)
- Common Cold
- Constipation
- Cystitis
- Diarrhea
- Edema
- Fever
- Gastroesophageal Reflux Disease (GERD)
- General Care
- Headache
- Heart Disease
- Hiatal Hernia
- High Blood Pressure
- Hot Flashes
- Hyperlipidemia
- Hyponatremia
- Influenza
- Inguinal Hernia
- Migraine
- Nausea and Vomiting
- Obesity
- Osteoporosis
- Peptic Ulcer
- Prescription Refill
- Urethritis
- Urinary Tract Infection (UTI)
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Emily E. Ray Ko as in-network for the following 2026 plans.
Health plans
Cigna Healthcare
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 17 plans from Cigna Healthcare
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Connect Bronze 5500 Indiv Med Deductible | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Connect Bronze 6500 Indiv Med Deductible | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Connect Bronze CMS Standard | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Connect Bronze RD 5000 Indiv Med Deductible | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Connect Bronze RD 6000 Indiv Med Deductible | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Connect Bronze RD CMS Standard | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Connect Gold 1500 Indiv Med Deductible | HMO · Gold | Preferred | Accepting new patients |
| Connect Gold CMS Standard | HMO · Gold | Preferred | Accepting new patients |
| Connect Gold RD CMS Standard | HMO · Gold | Preferred | Accepting new patients |
| Connect myDiabetesCare Bronze | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Connect myDiabetesCare Silver | HMO · Silver | Preferred | Accepting new patients |
| Connect Silver 3600 Indiv Med Deductible | HMO · Silver | Preferred | Accepting new patients |
| Connect Silver 5000 Indiv Med Deductible | HMO · Silver | Preferred | Accepting new patients |
| Connect Silver CMS Standard | HMO · Silver | Preferred | Accepting new patients |
| Connect Silver RD 3500 Indiv Med Deductible | HMO · Silver | Preferred | Accepting new patients |
| Connect Silver RD 5000 Indiv Med Deductible | HMO · Silver | Preferred | Accepting new patients |
| Connect Silver RD CMS Standard | HMO · Silver | Preferred | Accepting new patients |
This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Dr. Emily E. Ray Ko is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.
Medicare Enrollment
Dr. Emily E. Ray Ko is enrolled to bill Medicare as a Practitioner - Hospitalist (also registered under: Practitioner - Internal Medicine) .
Bills through: Duke University Health System, Inc
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Studies
STANFORD UNIVERSITY SCHOOL OF MEDICINE
Graduated in 1997Additional Specialities
- Internist
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- Address: 508 Fulton Street Durham, 27705, NC
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- Address: 508 Fulton Street Durham, 27705, NC
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- Address: 508 Fulton Street Durham, 27705, NC
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- Address: 2301 Erwin Road Durham, 27705, NC
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Questions & Answers
Does Dr. Emily E. Ray Ko have affiliation with practices?
Dr. Emily E. Ray Ko is affiliated with Duke Imaging Service at Cary Parkway.
Does Dr. Emily E. Ray Ko accept patients with Cigna Healthcare?
Yes, Dr. Emily E. Ray Ko is listed in-network for Cigna Healthcare through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.
Where can you meet with Dr. Emily E. Ray Ko?
Dr. Emily E. Ray Ko's office is located at 4103 Graceview Way in Durham, NC 27705.
What conditions does Dr. Emily E. Ray Ko treat?
Dr. Emily E. Ray Ko provides treatment for Cholecystitis, Cystitis, Fever, Inguinal Hernia, Obesity, Prescription Refill. For the full list see this list.
Has Dr. Emily E. Ray Ko affiliation with hospitals?
Dr. Emily E. Ray Ko is affiliated with DUKE REGIONAL HOSPITAL.